[Purpose] Motion capture system is difficult to use in daily life. The aim of this study was to propose an estimation model for knee and ankle joint angle measurements and locate body center of gravity (COG) of the extension phase during standing-up motion. [Subjects and Methods] Seven healthy male volunteers were enrolled. An estimation model was proposed for the knee and ankle joint angle mea...

One of critical tasks of cadastre system maintaining is the input of changes into its database. Managers of information centres often complain they have no adequate tools for the assessment of work of cadastre system operators. In the paper a fuzzy model is proposed which goal is to provide a useful tool for management of an information center. The architecture of the fuzzy system comprises fiv...

[Purpose] This study investigated whether inhibition of unilateral vestibular function by transcranial direct current stimulation (tDCS) facilitates center-of-gravity (CoG) displacement. [Participants and Methods] Ten healthy individuals participated in this study. During a CoG displacement task, the subjects received 3 minutes cathodal tDCS applied to right mastoid (tDCS condition) or first 30...

BACKGROUND A minimum 4-point change at 6 months on the Alzheimer's disease assessment scale-cognitive subscale (ADAS-cog) is deemed clinically important, but this cut-point has been little studied in relation to clinical meaningfulness. In an investigator-initiated, clinical trial of galantamine, we investigated the extent to which a 4-point change classifies goal attainment by individual patie...

The social demand not only to educate, but also to classify students according to their qualifications, makes the student assessment one of the most important components of the educational process. Fuzzy logic, due to its nature of characterizing a case with multiple values, offers rich resources for the ssessment purposes.This gave us several times in past the impulse to apply principles of fu...

Student difficulties in science learning are frequently attributed tomisconceptions about scientific concepts. We argue that domain-general perceptual processes may also influence students’ ability to learn and demonstrate mastery of difficult science concepts. Using the concept of center of gravity (CoG), we show how student difficulty in applying CoG to an object such as a baseball bat can be...

the different similarity transformation (dst) technique (stavrev, 1997) utilizes a powerful and fully automatic tool for depth estimation of a point source through euler de-convolution. stavrev (1997) showed the results for the magnetic data of simple 2-d sources and aeromagnetic data along profiles. we apply the technique for the gravity data of 2-d rectangular models and real gravity data whi...

We present a hardware oriented method for real-time measurements of object’s position in video. The targeted application area is light spots used as references for robotic navigation. Different algorithms for dynamic thresholding are explored in combination with component labeling and Center Of Gravity (COG) for highest possible precision versus Signal-to-Noise Ratio (SNR). This method was deve...

Skew detection and correction (SDC) has a direct effect in efficiency and exactitude of documents’ segmentation and analysis and thus is considered as a very important step in documents’ analysis field. Skew is a major problem in documents’ analysis for every language. For Arabic/Persian document scripts this problem is more severe because of special features of these languages. In this paper a...